Tissue box



FIG. 1 is a top, perspective-view of an embodiment of a tissue box;

FIG. 2 is a top view thereof;

FIG. 3 is a top, perspective-view of another embodiment of a tissue box; and,

FIG. 4 is a top view thereof.

The broken lines illustrate environmental structure and form no part of the claimed design. 

CLAIM The ornamental design of a tissue box, as shown and described. 